src/test/ui/did_you_mean/issue-39544.stderr

   1 error: cannot borrow immutable field `z.x` as mutable
   2   --> $DIR/issue-39544.rs:21:18
   3    |
   4 21 |     let _ = &mut z.x;
   5    |                  ^^^
   6
   7 error: aborting due to previous error
   8